Added POS and transaction comment support

lib/blockTemplate.js

@@ -11,7 +11,7 @@ var util = require('./util.js');
  * The BlockTemplate class holds a single job.
  * and provides several methods to validate and submit it to the daemon coin
 **/
-var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publicKey, extraNoncePlaceholder){
+var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publicKey, extraNoncePlaceholder, reward){
 
     //private members
 
@@ -52,7 +52,9 @@ var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publ
     this.generationTransaction = transactions.CreateGeneration(//new transactions.Generation(
         rpcData,
         publicKey,
-        extraNoncePlaceholder
+        extraNoncePlaceholder,
+        reward,
+        txMessages
     );
 
     this.serializeCoinbase = function(extraNonce1, extraNonce2){
@@ -64,6 +66,8 @@ var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publ
         ]);
     };
 
+
+    //https://en.bitcoin.it/wiki/Protocol_specification#Block_Headers
     this.serializeHeader = function(merkleRoot, nTime, nonce){
 
         var header =  new Buffer(80);
@@ -75,7 +79,6 @@ var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publ
         header.write(rpcData.previousblockhash, position += 32, 32, 'hex');
         header.writeUInt32BE(rpcData.version, position + 32);
         var header = util.reverseBuffer(header);
-
         return header;
     };
 
@@ -84,7 +87,8 @@ var BlockTemplate = module.exports = function BlockTemplate(jobId, rpcData, publ
             header,
             util.varIntBuffer(this.rpcData.transactions.length + 1),
             coinbase,
-            this.transactionData
+            this.transactionData,
+            new Buffer(reward === 'POS' ? [0] : [])
         ]);
     };
 

lib/jobManager.js

@@ -116,7 +116,16 @@ var JobManager = module.exports = function JobManager(options){
 
     this.processTemplate = function(rpcData, publicKey){
         if (CheckNewIfNewBlock(rpcData.previousblockhash)){
-            var tmpBlockTemplate = new blockTemplate(jobCounter.next(), rpcData, publicKey, _this.extraNoncePlaceholder);
+
+            var tmpBlockTemplate = new blockTemplate(
+                jobCounter.next(),
+                rpcData,
+                publicKey,
+                _this.extraNoncePlaceholder,
+                options.reward,
+                options.txMessages
+            );
+
             this.currentJob = tmpBlockTemplate;
             _this.emit('newBlock', tmpBlockTemplate);
         }

lib/transactions.js

@@ -129,15 +129,21 @@ For some (probably outdated and incorrect) documentation about whats kinda going
 see: https://en.bitcoin.it/wiki/Protocol_specification#tx
  */
 
-exports.CreateGeneration = function(rpcData, publicKey, extraNoncePlaceholder){
+exports.CreateGeneration = function(rpcData, publicKey, extraNoncePlaceholder, reward, txMessages){
 
-    var txVersion = 1;
+    var txInputsCount = 1;
+    var txOutputsCount = 1;
+    var txVersion = txMessages === true ? 2 : 1;
     var txLockTime = 0;
 
     var txInPrevOutHash = 0;
     var txInPrevOutIndex = Math.pow(2, 32) - 1;
     var txInSequence = 0;
 
+    var txComment = txMessages === true ?
+        util.serializeString('https://github.com/zone117x/node-stratum') :
+        new Buffer([]);
+
     var scriptSigPart1 = Buffer.concat([
         util.serializeNumber(rpcData.height),
         new Buffer(rpcData.coinbaseaux.flags, 'hex'),
@@ -150,7 +156,8 @@ exports.CreateGeneration = function(rpcData, publicKey, extraNoncePlaceholder){
 
     var p1 = Buffer.concat([
         binpack.packUInt32(txVersion, 'little'),
-        util.varIntBuffer(1),
+        reward === 'POS' ? binpack.packUInt32(rpcData.curtime, 'little') : new Buffer([]),
+        util.varIntBuffer(txInputsCount),
 
         //transaction input
         util.uint256BufferFromHash(txInPrevOutHash),
@@ -164,7 +171,7 @@ exports.CreateGeneration = function(rpcData, publicKey, extraNoncePlaceholder){
         binpack.packUInt32(txInSequence),
         //end transaction input
 
-        util.varIntBuffer(1),
+        util.varIntBuffer(txOutputsCount),
 
         //transaction output
         binpack.packInt64(rpcData.coinbasevalue, 'little'),
@@ -172,7 +179,8 @@ exports.CreateGeneration = function(rpcData, publicKey, extraNoncePlaceholder){
         publicKey,
         //end transaction ouput
 
-        binpack.packUInt32(txLockTime, 'little')
+        binpack.packUInt32(txLockTime, 'little'),
+        txComment
     ]);
 
     return [p1, p2];